Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e0dfd962b5191c8…

MALICIOUS

PDF

69.2 KB Created: 2021-04-08 09:13:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 41f7389303c6825417e48f3324ff901c SHA-1: cfcf4fd304a6a012ae442655f17bd781d30cb97e SHA-256: 5e0dfd962b5191c84d61a24d0cfa99d279f2c2af28e08f3549f361c6a767e7ac
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains multiple embedded URLs, one of which, 'https://jottigo.ru/strik?utm_term=genie+garage+door+not+working+with+remote', is flagged as an external URI and part of a link farm. The document body, though heavily obfuscated, suggests a lure related to 'Genie garage door not working with remote', which is likely a pretext to encourage clicks on the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://jottigo.ru/strik?utm_term=genie+garage+door+not+working+with+remote PDF link annotation
    • http://simultaneously.space/evangelios_apocrifos_descargar_gratisutqnw.pdfIn PDF document text
    • https://cdn.sqhk.co/xorakulenido/pfEC7Uy/pababatasu.pdfIn PDF document text
    • https://cdn.sqhk.co/kigimole/7jb0Thg/al_kalam_surah_e_shams.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393369/normal_5ffddf4a2e302.pdfIn PDF document text
    • http://yyyyyyhhhhh.space/ge_cafe_gas_stove_3648mxk.pdfIn PDF document text
    • https://cdn.sqhk.co/fepogosu/0fb4AZ4/smart_meter_electric_reading_not_working.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499021/normal_5ffc1cbbb5dcb.pdfIn PDF document text
    • http://vorecan.space/28227184237765zx.pdfIn PDF document text
    • https://cdn.sqhk.co/xoxamomajil/yxnFgie/getty_images_search_guide.pdfIn PDF document text
    • http://bcpreactiva-enlinea.com/golumobevetesovefi4szf2.pdfIn PDF document text
    • http://instasurprise.online/a_raisin_in_the_sun_characters_jobsi2w6q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a73a5b2b-7bc0-4876-a45d-b75a7c202b2e/international_journal_of_research_in_medical_sciences.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a642c46-84b2-403c-aada-7b9650030b30/what_does_the_prefix_mito_mean_in_biology.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b9b41f5-4c77-4768-ac2a-197256bca440/thank_you_for_taking_the_time_to_answer_my_email.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f920c28f-00c2-4b76-8775-e0bb22f772e6/the_hobbit_song_of_the_lonely_mountain_mp3_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec58f1ec-6361-40d2-9d84-2779ebee4623/47381782153.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8d86617-5d98-4936-852a-6cd2e9825ea0/what_comes_after_insurgent_in_the_divergent_series.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93b8cdbd-146c-4afb-9b44-0af801f06eee/ice_cream_machine_cheap_price.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef5f079d-1a84-41e6-a26d-ab839323e8eb/43338564546.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a5a1353-0508-44fc-8985-5739f7dfab67/64442361842.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afb2f2fa-b2af-451d-9517-445848119af5/bexine.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3C0 5216 bytes
SHA-256: 9987426a83be8ed0d9ed123110bdf035c3c68a2ffdcccd09ab345109787ef1d3
font_01_sfnt_off0000e56b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE56B 9972 bytes
SHA-256: 18915e5727d56199ab2dddda12ad24674757fc5064ab335568c4dea6e6513795